Rafter insulation
I'm installing some insulation into some 9 1/2 " rafters, I am considering using R 25 bat's which expands to 8 3/4". My question is , is 3/4" air...
COMMUNITY FORUM: HVAC
over 12 years by Larry Lane
0
answers840
Views
Hollywood - AC Question
Hollywood- You appear to have a great deal of knowledge in this field and my question is in reference to the new refrigerant R410. What is the norm...
2
answers160
Views
straps
I am in the process of installing R25 Johns Manville Comfort Therm fiberglass batts in the joists above my basement. I won't be able to finish th...
1
answers207
Views
steam radiators don't get hot
I have a 230 yr old house with steam heat. A couple radiators on the 2nd floor (there are 3 floors) do not get hot at all with the valves fully ope...
1
answers600
Views
A/c and boiler questions
My A/C unit went out in August when the blower motor quit. The repair man from the local utility could not get off the panels because one side is ...
1
answers749
Views
Bleeding Hot Water Pipes
I have a hot water heating system in my home. Last year, when we turned it on, it made a lot of noise through the pipes, kind of a loud gurgling s...
1
answers940
Views
Insulation in a crawl space
When I bought my home several years ago I had the crawl space under the house insulated. At that time I was adviced to only have the walls insulate...
1
answers334
Views
insulating around door frames
I was curious if anyone had a suggestion as to what to use to insulate around the door frame. We replaced 2 doors this summer. We have not replac...
1
answers692
Views
Under Tile Radiant heat for Bathroom?
A few months ago on one of the DYI shows, I saw a heating system for bathrooms without heating ducts. Putting it simply, it was like a giant heati...
over 12 years by Brian Wood
3
answers482
Views
Shut down house in Winter
I'm thinking about shutting down my weekendhouse for 3 months this winter. What are thesteps I need to take? In terms of drainingpipes, etc. Is t...
3
answers1028
Views
Boiler
Can anyone help. I have a boiler that is running about 30 psi and I know the pressure should be about 10 psi. I bled the valves on all the radiator...
1
answers626
Views
Garage to TV room
We are planning to turn the old carport/garage into a TV room but need to know how to insulate over the 8"thick concrete slab floor. When the prev...
1
answers263
Views
floor insulation the answer?
I have a 150 square foot bedroom over an uninsulated garage which is difficult to cool. It is also farthest from the central AC unit. Would insul...
1
answers626
Views
I need to design a central air system
I have a 100 year old house with a boiler almost as old. I will be doing a complete renovation includeing replaceing the heating system. I have bas...
1
answers136
Views
Convert from steam to forced air?
I have a 75-year-old 3-story stick frame colonial in the northeast. Currently have oil-fired steam heat (needs new furnace) and would like to conve...
1
answers788
Views
Which material is best?
We live in the San Francisco Bay Area (San Jose) and need to insulate our attic and walls. We have two bids. One for cellulose and one for Fibergla...
0
answers799
Views
A/C & Pool Heating
I was wondering if anyone knows of an AC unit that can circulate pool water through the coils to be able to heat the pool and cool the house at the...
4
answers162
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A/C extension and sizing
I've recently completed a bedroom addition, but have not run extensions from the existing ductwork for A/C. I could run a new air return and addit...
1
answers253
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return duct size
I have installed a forced air LP furnace and central air unit in my summer home in Wisconsin. The heat ducts are 8"x14". The experts recommend that...
1
answers434
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Heat Pump Duct Alteration
I'm finishing my basement and need to raise the main blower trunk from my heat pump abouit 2" to facilitate a door....can I cut the bottom from the...
6
answers566
Views
